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FUZZY ONTOLOGY

FUZZY ONTOLOGY. Building a fuzzy ontology plugin for Protégé. Introduction to Protégé. Free software for the creation of models and aplications using ontologies Developed by Stanford University and Mark Musen Enables the creation of ontologies for Semantic Web in the W3C OWL language.

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FUZZY ONTOLOGY

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  1. FUZZY ONTOLOGY Building a fuzzy ontology plugin for Protégé

  2. Introduction to Protégé • Free software for the creation of models and aplications using ontologies • Developed by Stanford University and Mark Musen • Enables the creation of ontologies for Semantic Web in the W3C OWL language

  3. Ontology basics • Description of concepts and relations that exist between them, used by one or more agents. • “A formal and explicit specification of a shared conceptualisation.”

  4. Basic components • Classes - organized in a hierachy Relations - types of interactions • Axioms - model true statements • Instances - specific elements • Domain - limits of an ontology • Vocabulary - classes and instances

  5. Protégé architecture • GUI for manipulation of the knowledge base • Rich set of structures for modeling knowledge in various presentations formats • Can be expanded by Java API plug-ins • PAL – internal axiomatic language for the consrtuction of output forms

  6. Architectureschematic

  7. Source code •  Protégé 4.0http://protege.stanford.edu/download/protege/4.0/zip/?C=N;O=D • graphVizhttp://www.graphviz.org/Download.php

  8. Creating an ontology

  9. Creating a class

  10. Object properties

  11. Creating relations

  12. Creating instances

  13. Searching the code • Protégé architecture, documentation and code repositories http://protege.stanford.edu/ • Problems with compatibility of versions Protégé 3.2, Protégé 3.4 e Protégé 4.0

  14. Types of plugins • T - Tab Widget plug-ins • S - Slot Widget plug-ins • P - Project plug-ins • I - Resource Display plug-ins • F - Resource Action plug-ins • O - Ontology Test plug-ins • R - Result Panel plug-ins • C - Conditions Widget Extensio plug-ins

  15. Location of plugins

  16. Usefull resourcess • Protégé sourcehttp://protege.stanford.edu/download/registered.html • Protégé repositoryhttp://smi-protege.stanford.edu/repos/protege • Development guide with exampleshttp://protege.stanford.edu/plugins/owl/api/guide.html#Overview • Class inheritance by plugin typehttp://protege.stanford.edu/doc/dev.html#plugins • JAVA helphttp://wso2.org/project/wsas/java/1.1/docs/setting-java-home.html

  17. Modifying XML • Rename the file XML in folder XML to plugin.xml. • Add the folowing code into file

  18. Configuring Eclipse • Verify SubClipse is installed • Add Protégé repository to Eclipse • Select the file trunk from protege4/protege-standalone/ • Create new Java Project • Add all JAR files from subfolders lib and osgi/equinox into subfolder src in the plugin folder • Select file build.xml and execute “run as...” “Ant Build”

  19. RequiredMétodos • initialiseClassView() - creates vizualisations • updateView() - selects classes. • disposeView() - removes visualisations getOWLModelManager() - accesses ontologies and events • getOWLWorkspace() - returns interface

  20. Plugin example • Select the Protégé instalation folder as workspace • Add all JAR files with class packages • Create and configure the compiler output • Create a Java class with required methods • Execute program

  21. Errors and problems

  22. Solution • Create a workspace in the Protégé instalation file • Import all Protégé source code files into the project • Add all possible libraries and extensions into the Protégé instalation file • Configure the complier as before • Configure a JAVA_HOME as described in Java help

  23. Result

  24. References • GRUBER, T. R. A Translation Approach to Portable Ontology Specifications. Knowledge Acquisition, v. 5, n. 2, p. 199-220, 1993. • YAGUINUMA, C. A.; BIAJIZ, M.; SANTOS, M. T. P. Sistema FOQuE para Expansão Semântica de Consultas Baseada em Ontologias Difusas. In: XXII Simpósio Brasileiro de Banco de Dados, 2007, João Pessoa (PB). XXII Simpósio Brasileiro de Banco de Dados. João Pessoa (PB): SBC, 2007. v. 1. p. 208-222. • STANFORD UNIVERSITY. The Protégé Ontology Editor and Knowledge Acquisition System. Disponível em: <http://protege.stanford/>. Acesso em: 03 ago. 2009. • SEMPREBOM, T; CAMADA, M; MENDONÇA, I. Protégé e Ontologias. Florianópolis, 17 jul. 2007. Disponível em: <http://www.das.ufsc.br/~gb/pg-ia/Protege07/ontologia_protege.pdf>. Acesso em: 03 ago. 2009. 26 p. • MIMWIKI. Utilização do Protégé para Definição de Ontologias Médicas. Disponível em: <http://mimwiki.med.up.pt/index.php/Utiliza%C3%A7%C3%A3o_do_Prot%C3%A9g%C3%A9_para_defini%C3%A7%C3%A3o_de_ontologias_m%C3%A9dicas>. Acesso em: 03 ago. 2009. • WIKIPEDIA.ORG. Ontologia (Ciência da Computação). Disponível em: < http://pt.wikipedia.org/wiki/Ontologia_(ci%C3%AAncia_da_computa%C3%A7%C3%A3o)>. Acesso em: 03 ago. 2009.

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